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@NogDogFeb 07.2009 — #Try this:
Alternatively, if there is any possibility of a "<" within the captured text, use:
@NogDogFeb 07.2009 — #Just FYI, another more robust option (if a bit more coding work) would be to use the [url=http://www.php.net/dom]DOM functions[/url] to parse the XML and then pick out the data you want.@NogDogFeb 07.2009 — #"Robust" in that if the XML being parsed is properly formed, then it should be expected to parse it correctly regardless of how intricate it may be. For example, the regexp we used would fail for anything where a <kwd> tag had an attribute (e.g. <kwd id="1">). In other words, as long as the basic XML schema does not change, your code would still work with the DOM functions but a regexp-based solution might fail if your pattern does not account for all possibilities.
The DOM functions are part of the PHP core if you are running PHP5; there is nothing to install. If running PHP4 (and shame on you if you are :p ), you would have to use the DOM XML extension instead, which is not part of the PHP core. @NogDogFeb 07.2009 — #Just because I don't feel like working on what I should be, here's an example:
@NogDogFeb 07.2009 — #The "->" arrows are part of the object-oriented PHP syntax, indicating that the expression on the right is a member of the object on the left. It's basically the same as the "." in JavaScript, e.g.: [b]document.getElementById('kwd')[/b].
[RESOLVED] Regular Expression problem.
I have a problem with my PHP. Here’s the regulary expression:
[code=php]preg_match_all(‘#<kwd>(.)<kwd>#’, file_get_contents(‘./Data/keywords.xml’), $keywords);
Here is the file it’s searching through:
[code=html]<?xml version=”1.0″ encoding=”utf-8″?>
<!DOCTYPE kwds [
<!ELEMENT kwds (kwd+)>
<!ELEMENT kwd (#PCDATA)>
]>
<kwds>
<kwd>Comics</kwd>
<kwd>Chaos Theory/String Theory</kwd>
<kwd>Email</kwd>
<kwd>Flash</kwd>
<kwd>Forums</kwd>
<kwd>Furcadia</kwd>
<kwd>Furry</kwd>
<kwd>Games</kwd>
<kwd>HTML</kwd>
<kwd>Knowledge</kwd>
<kwd>LiveJournal</kwd>
<kwd>Local</kwd>
<kwd>Music</kwd>
</kwds>
For some reason, I’m not getting any of the contents of the <kwd> elements returned.
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0
@NogDogFeb 07.2009 — #Try this:<i>
</i>'#<kwd>([^<]+)</kwd>#'
Alternatively, if there is any possibility of a "<" within the captured text, use:
<i>
</i>'#<kwd>(.+?)</kwd>#'
0
@NogDogFeb 07.2009 — #Just FYI, another more robust option (if a bit more coding work) would be to use the 0
@NogDogFeb 07.2009 — #The DOM functions are part of the PHP core if you are running PHP5; there is nothing to install. If running PHP4 (and shame on you if you are :p ), you would have to use the DOM XML extension instead, which is not part of the PHP core.
0
@NogDogFeb 07.2009 — #Just because I don't feel like working on what I should be, here's an example:[code=php]
<?php
$xml = <<<EOD
<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE kwds [
<!ELEMENT kwds (kwd+)>
<!ELEMENT kwd (#PCDATA)>
]>
<kwds>
<kwd>Comics</kwd>
<kwd>Chaos Theory/String Theory</kwd>
<kwd>Email</kwd>
<kwd>Flash</kwd>
<kwd>Forums</kwd>
<kwd>Furcadia</kwd>
<kwd>Furry</kwd>
<kwd>Games</kwd>
<kwd>HTML</kwd>
<kwd>Knowledge</kwd>
<kwd>LiveJournal</kwd>
<kwd>Local</kwd>
<kwd>Music</kwd>
</kwds>
EOD;
// Use the DOM to get the kwd values:
$dom = new DOMDocument();
$dom->loadXML($xml);
$list = $dom->getElementsByTagName('kwd');
foreach($list as $item)
{
echo $item->nodeValue . "<br />n";
}
[/code]0
@NogDogFeb 07.2009 — #The "->" arrows are part of the object-oriented PHP syntax, indicating that the expression on the right is a member of the object on the left. It's basically the same as the "." in JavaScript, e.g.: [b]document.getElementById('kwd')[/b].[code=php]
<?php
$xmlFile = "test.xml";
$search = "LiveJournal";
$linksArray = array();
$dom = new DOMDocument();
$dom->load($xmlFile);
$links = $dom->getElementsByTagName('link');
foreach($links as $link)
{
$kwds = $link->getElementsByTagName('kwd');
foreach($kwds as $kwd)
{
if($kwd->nodeValue == $search)
{
$url = $link->getElementsByTagName('url');
$name = $link->getElementsByTagName('name');
$linksArray[] = array('url' => $url->item(0)->nodeValue, 'name' => $name->item(0)->nodeValue);
break;
}
}
}
// show the results:
echo "<pre>".print_r($linksArray,1)."</pre>";
[/code]